Our original HeatGear fabric is very light, breathable and dries quickly. The material wicks away sweat and dries very quickly. 4-Way Stretch technology allows for better movement in every direction. Elastic ribbed panels on the sides, back and front side seam shape the body. Cropped length and exposed elastic bottom band. 1/4 zipper on the front for easy layering, dressing and undressing. Built-in thumbholes help keep the sleeves in place. Odor control technology minimizes odor.